地形

In this paper, the MM5 Adjoint Assimilation System is used to correct MM5's terrain error. The experimental results of amending different initial terrain data indicate that: the MM5 AAS is able to retrieve the terrain field, whose resolution is matched with one of the initial meteorological element field and therefore well coordinated with the MM5 model. Thus a new way about how to widely use the assimilation system is offered in this paper.

将伴随模式同化系统应用于修正模式地形误差，通过对不同初始地形的修正试验表明，MM5伴随模式同化系统能很好地对地形误差进行修正，能够反演出与初始气象要素场分辨率相匹配、与模式更协调的地形场，为伴随模式同化系统的广泛应用提供了一种新的思路。

The regression equation can describe well the change of standard deviation of relative radiation error with solar zenith angle, standard deviation of height, and resolution of digital elevation model. The result demonstrates that it is necessary to consider terrain complexity when using moderate resolution of remotely sensed data.

利用拟合方程可以计算任意地形条件下，不同分辨率的卫星资料在不同太阳天顶角情况下，不考虑地形复杂性产生的平均地表入射太阳辐射的计算误差，结果表明，使用中分辨率的卫星资料计算地表太阳净辐射时，需要考虑地形复杂性。

Compared with some different denotations of digital terrain , the advantage of terrain modeling using regular reseau is better than using anomalistic trigonal reseaus.

论文通过对几种不同的数字地形表示的对比，说明了规则格网的地形建模比不规则三角网的地形建模在本系统中应用的优越性。

Antiplane responses of a scalene triangular hill or structure, an isosceles triangular hill or structure, an isosceles triangular hill with a subsurface cavity to incident SH waves are studied in this paper based on methods of wave function expanding, complex function, moving coordinates and by employing idea of assistant function.

本文在"分区"和辅助函数思想的指导下，综合利用了波函数展开、复变函数、移动坐标三种方法，研究了等腰三角形凸起地形和坝体结构、非等腰三角形凸起地形和坝体结构、浅埋圆孔附近等腰三角形凸起地形等三类问题对SH波的散射。

Digital Terrain Model is digital expression of geologic surface attributively information, it is also digital description with spatial location and terrain properties features.

数字地形模型是地形表面形态属性信息的数字表达，是带有空间位置特征和地形属性特征的数字描述。

To study the spatial variability of the sandy desertification soil on the Erdos Plateau, the water content of top soil(0～30cm) under different landforms was measured, and analysed by geostatics methools; and; each layer's water content was measured on some typical soil profiles along the landform section.

为了研究鄂尔多斯夏初不同地形土壤水分的空间变异规律，本试验在鄂尔多斯高原几种地形的沙质荒漠化土壤上，用时域反射仪测定表层土壤(0～ 30 cm)的含水量，对表层土壤水分分布特征进行分析；在不同地形部位选择典型土壤剖面，测定各层土壤含水量。

Then we can research the relationship between topography-isostatsy compensation gravity and geoid and order and degree of spherical harmonic series, and discuss the characters of topography-isostatsy compensation gravity and geoid.

由此我们可以研究地形—均衡补偿重力、大地水准面异常与球谐级数阶次的关系，以及不同波长地形荷载与岩石圈挠曲补偿的关系，探讨地形—均衡补偿重力、大地水准面的频谱特性。

The large altitude difference of the hypsography, the fragmental topography, the difference of exposure and the valley cause the difference of the part climate which make the orographic rain , the topography wind and the temperature inversion.

由于地势高差悬殊、地形破碎和坡向、谷向的不同，常引起局部气候差异，多地形雨、地形风和逆温现象，形成不同的小气候。

Based on Digital Elevation Model Data Space Analysis Technique, Yarlung Zangbo River drainage area is selected to be analyzed quantitatively to its landform and physiognomy by new obtained high precision SRTM DEM data. Typical physiognomy parameter of Yarlung Zangbo River drainage area is picked up economically, and a series of physiognomy analysis theme figures such as physiognomy highness, landform grade, slope direction and hypsography have been generated, which have been discussed and analyzed primarily. Profitable supplement has been made to new construction study of physiognomy boundary strap in the south of Tibetan Plateau.

本文基于数字高程模型数据空间分析技术，利用最新获取的高精度的SRTM DEM数据，选取雅鲁藏布江流域进行定量的地形地貌分析，系统提取了雅鲁藏布江流域典型的地貌参数，生成了一系列地貌分析专题图如地貌高程图、地形坡度、坡向图以及地形起伏度等，并进行了初步的讨论分析，对我国青藏高原南部地貌边界带的新构造研究做了有益的补充。

The problems were designed not only to get them a working knowledge of the mechanics of combat but to teach the most basic thing an infantryman has to know: how to love the ground, how to use it to advantage, haw the terrain dictates tactics, above all how to live on it and in it for days at a time without impairment of physical efficiency.

所设计的问题不仅给他们一些战斗机制运作方面的知识，而且教会他们步兵必须了解的基本知识：如何判读地形，如何利用有利地形，如何根据地形采取不同战术，尤其是如何在地面生存，在不影响体能的情况下一次在地面生存好几天。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。